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Author Topic: O1 who knew!  (Read 1755 times)
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jared williams
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« on: April 25, 2014, 09:43:47 AM »

My buddy Nate (he is an apprentice HEPK smith) came over the other day and had a knife that he made out of a 3/4" bar of O1. He forged and thermal cycled and heat treated the blade as per HEPK profile and we decided to test the blade and see what it would do. Now mind you this blade was made with no kiln or anything fancy. Just a forge, hand hammered, torch for quenching, pearlite for annealing and the kitchen stove for temper. The blade cut well over 200 cuts in 1/2" sisal rope without slowing down, then it did 5 edge flexes before it rolled over. we then put it in the vise and flexed it 90 deg. then it went back to 45 deg. the other way before it cracked. I would say that is pretty amazing considering the materials used and the processes he used. The blade is about 5" long and .20 thick

Here is a pick of the blade after the bend test



and a video of the bend

http://youtu.be/iapRLlQURk4    

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Ed Fowler
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« Reply #1 on: April 25, 2014, 09:53:05 AM »

Beautiful, thanks for sharing!!

I love the way the fracture or more correctly tear bifurcates when it meets the transition zone. This is exactly what we are looking for.

He now knows and has achieved more than most knifemakers will ever know about their knives, thanks for sharing!
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Dennis Mashburn
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« Reply #2 on: April 25, 2014, 02:06:51 PM »

Nice, I love it.  great video too!

I bet he is hooked now.  Once you break that first one, testing can become addictive.
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John Silveira
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« Reply #3 on: April 25, 2014, 03:11:34 PM »

Great Job !

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Nathan Summers
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« Reply #4 on: April 25, 2014, 04:46:10 PM »

Hey thanks everybody!! I really did enjoy breaking it!
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Daniel Rohde (D-Vision)
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« Reply #5 on: April 25, 2014, 07:03:39 PM »

Fantastic! Great Job!! How old are you and how long have you been making knives?
Thanks for sharing!
Daniel
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Joe Calton
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« Reply #6 on: April 25, 2014, 07:17:32 PM »

Nathan, great job!

if you can get me your email address, I can put you on the list on my website for apprentice smith, you also D, and Jared also for the mastersmith list.
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Ed Fowler
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« Reply #7 on: April 25, 2014, 08:48:08 PM »

Welcome to KTO Nathan, again great job!
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Nathan Summers
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« Reply #8 on: April 25, 2014, 10:10:43 PM »

Daniel, I'm 28 and I've been making knives since I was 15. Jared Williams has been my instructor/mentor/friend since I was 17, and he's been sharing all the HEPK information with me ever since he's been involved with it. Its one of the greatest methods for making a knife I have heard of, and I can't wait to make more progress with it!
Joe, my email address is natetheblademaker@gmail.com
Ed, Thanks again for the welcome, I look forward to talking with all you guys!
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RAD
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« Reply #9 on: May 16, 2014, 06:53:52 PM »

Good stuff thanks for sharing.
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John Silveira
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« Reply #10 on: May 17, 2014, 07:55:49 PM »

i had just ordered some O1 around the same time you posted - now i feel better about my product as well - though i'm not going to test this one.

I'm warming up to convex grinds , this one however is mostly a flat grind for sure but will have about 1/4" of the edge convex ground to the sharpened edge.

received 3 normalize heats - 1 anneal heat - then 3 heat treat/hardening - a couple hours in the temper at 420*
thanks again for posting

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